.drag-and-drop {
  width: 410px;
  height: 600px;
  border: 1px solid $default-color-inverse;
  overflow: hidden;
  .block-content {
    width: 100px;
    height: 102px;
    text-align: center;
    line-height: 100px;
    border: 1px solid #ccc;
    display: inline-block;
  }
}
